3405873 has 4 divisors (see below), whose sum is σ = 4541168. Its totient is φ = 2270580.

The previous prime is 3405841. The next prime is 3405881. The reversal of 3405873 is 3785043.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3405873 - 2⁵ = 3405841 is a prime.

It is a D-number.

It is a Duffinian number.

3405873 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3405873.

It is not an unprimeable number, because it can be changed into a prime (3405803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 567643 + ... + 567648.

It is an arithmetic number, because the mean of its divisors is an integer number (1135292).

Almost surely, 2^3405873 is an apocalyptic number.

It is an amenable number.

3405873 is a deficient number, since it is larger than the sum of its proper divisors (1135295).

3405873 is a wasteful number, since it uses less digits than its factorization.

3405873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135294.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 3405873 is about 1845.5007450554. The cubic root of 3405873 is about 150.4559901928.

It can be divided in two parts, 3405 and 873, that added together give a triangular number (4278 = T₉₂).

The spelling of 3405873 in words is "three million, four hundred five thousand, eight hundred seventy-three".